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(No Model.) 7 Sheets-Sheet 1'. v F. W. BLOOD.

BOX NAILING MAUHINE.

Patented Feb. 13

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BOX NAILING MACHINE.

No. 272,199. Patented Feb. 13,1883

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BOX NAILING MACHINE.

Patented Feb. 13

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No. 272,199. Patnted Feb. 13,1883.

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BOX NAILING MAOHINE.

N0. 272,199. Patented-Peb;13.1883.'

FREDERICK WALTER BLOOD, OF LIVERPOOL, COUNTY OF LANCASTER,

' ENGLAND.

BOX-NAILING MACHINE.

SPECIFICATION forming partof Letters Patent No. 272,199, dated February 13, 1883.

I Application filed August 1, 1882. (No model.) Patented in England November 12, 1881, No. 4,961.

To all whom it may concern.-

Be it known that I, FREDERICK WALTER BLOD,asubjectof theQneen of GreatBritain, residing at Liverpool, in the county of Lancaster and Kingdom of Great Britain, have invented new and useful Improvements in Box- Nailing Machines, (for which I have obtained a patent in. Great Britain, No. 4,961, bearing date November 12, 1881,) ing is a specification.

Myinvention relates to box-pailin g machines; and it consists in various features and details hereinafter fully explained.

In the accompanying drawings, Figure 1 represents a front elevation of my improved machine; Fig. 2, a side elevation of the same; Fig.3,atop plan view; Fig.4, aplan viewof the nail-holder cross-head. Figs. 5 and 6 are enlarged detail views; and Figs. 7,8, and 9, views illustrating certain modifications.

. The objects of my invention are to produce a machine which shall be adapted for nailing boxes of various sizes, and to simplify andimprove the general construction of the machine. 'With these purposes in view I construct my machine in the following manner.

Referring again to the drawings, A repre: sents a supporting frame-work or housing, provided with slots at, having polished cheeks to receive the sliding cross-heads O and D, the former carrying the nail-drivers and the latter the nail receivers or holders. As shown in Figs. 1, 2, 7, and 8, the ends of both crossof which the followheads (3 and D are carried through and pro- 5 ject beyond the slots at of the machine, the

ends of cross-head O projecting beyond the ends of cross-head D, in order that rods may be connected to the ends of both cross-heads, and carried downward to operating mechanism without interfering with each other.

B represents the box-supporting table, carried by V-shaped or beveled slides running in upright ways or guides b in the'frame A. In order that the table maybe readily adjusted to any required height to suit the work, the frame A is provided with a rack or racks, F,

into which mesh or engage pinionsf, secured.

upon a cross-shaft journaled in arms or bracket s attached to or formed upon the under side of the table, said shaft being furnished with a hand-wheel, E, by-which it may be rotated to raise or lower the table. The table is held at any desired height by means of pawls G, provided with counter-weights g, which cause the noses of the pawls to engage and remain engaged in the teeth of a ratchet-bar, g, attached to or formed upon the frame, as more plainly shown in Fig. 2. The pawls G are keyed upon a cross-shaft, which is furnished with a hand-lever, g by which the pawls may be readily and simultaneouslydisengaged from the ratchets when it is desired to lower the table. In some cases, and particularly in light and small machines, the rack-and-piniou mechanism for raising and lowering the table may 6 be omitted and the adjustments effected by hand only.

The rack 9 may be made separately and bolted to the frame, or cast thereon, or notches or grooves may be formed in'the frame at stated heights corresponding to the regular sizes of boxes.

In order to insure the proper placing of the boxes upon the table, so as to bring the line for nailing directly beneath the nail holders and drivers, I provide the table B with an adjustable gage or back plate, H, which, being once set, remains fixed during the nailing of all the boxes of the size for which itis ad- 'justed. The boxes or box parts, being placed upon the table, are drawn snugly against the gage, and thus the nailing is performed with certainty and accuracy at the required point or points.

The cross-heads O and D carry respectively the nail-drivers and the nail receivers or holders, and they are so arranged that the crosshead I) may be first drawn down upon the box or the box material, and thus be made to hold the parts firmly in position, and then the crosshead 0 shall be caused to descend and drive the nails held by the nail receivers or holders.

To permit the action to be conveniently brought about, the driving-shaft s, which is furnished with a fast and a loose band-pulley, as usual,is also provided withapinion,P,which meshes with a gear-wheel, I loose and free to rotate upon a shaft, 0', which carries crank wheels or disks J, connected by rods J to the cross-head C, so that when the shaft 0 rotates the cross-head'will be caused to rise and fall.

The hub or boss of wheel P is fashioned to ers carried by cross-head 1).

receive and lock or engage with a slidingclutch, N, arranged to be moved longitudinally upon shaft 0 through the action of a treadle, M. attached to a shaft, m, carrying an arm, n, which connects with the sliding clutch N through the medium of a connecting-bar, n, aml lever 92?, as more plainly shown in Fig. l. The shaft m alsocarries an arm, at, which is connected with a lever. in, by a spring, 111 as shown in Figs. 1 and 2, said lever in being rigidly secured to a. shaft, L, carrying artns orlevers l, which are connected by rods 1 to the cross-head D.

The parts being thus constructed and arranged, it will be seen that by pressing with the foot upon treadle M the cross-head D will be drawn down upon the box placed upon table B through the joint action of rods 1, levers 1 172 spring m arm m, and shaft m, the spring affording an elastic pressure, and also permitting the shaft to be turned farther after the cross-head D has been drawn down upon the box. The further turningof the shaft m causes arm n to swingforward, and, through connect-- ing-rod n and lever of, to move the clutch N into engagement with the hub or boss of continuously-rotating wheel P. As the shaft 0 is thus put in motion, the clutch N being prevented from turning independently thereof, the disks J are rotated and the cross-head C is suddenly drawn down, driving the nails into the box and flush with its face. Thus a simple pressure upon the treadle M causes the cross-head D to first descend and clasp or hold the box or parts, and then the cross-head O to descend and drive the nails through the hold- The cross-head or frame D carries shaft 6, on which are mounted the nail-feeders K, and said cross-head also carries the nail-holders R, as shown in Fig. 5.

K indicates the nail-feeders, consisting of a series of tunnel-shaped tubes, 7.", secured upon a common shaft, 0, which latter carries an arm,

Q, having a. double incline upon its upper end, asshown in Fig.6, and normally pressed forward to the position shown in said figure bya spring,

q, as shOWtl. When in said position, and before the nail-drivers I descend, the tubes It are supplied byhand each withanail. Asthecross-head Udescendsan arm orroller, q, actsuponan arm, Q, throwing it outward or backward. partially rotating shaft 0, and swinging the lower ends of the tubes or funnels it over the nail-holder openings (1 whence they pass down to the nailholders B, followed anti driven downward by the nail-drivers I in their further movement. As the arm or roller q passes the incline the nail-receivers K swing backward to their first position, their lower ends standing overa plate or ledge, as shown in Fig. 6, which prevents the nails from dropping out until the tubes are swung forward over the openings d, as mentioned.

The nail receivers and holders R are below the nail-feeders, and are carried y the crosshead I). Theyconsist each 01 twojaws, r,cut out on their opposing faces, so as to form a space or opening between them of parabolic or conoidal form, continuingdown toa circular hole at the lower end to receive the point of the nail. Each jaw is hung upon a pivot or spindle, 1', independent of the others, cach spindle being furnished with an arm or lever, T to which is attached a spring, 1*. The springs hold the jaws normally in contact to prevent the nailfrom dropping down; but the jaws may be separated by merely overcoming the tension OIfnI'OB ofthe springs. As the naildrivers descend they force the nails before hem to drive the nails flush withrthe side or face of the box. As the nail drivers rise and pass above the nail holders the jaws of the latter again come together by reason of the action of the springs, ready to guide tresh nails. The wheel P, as before statetl,imparts motion to the cross-heads O D, or permits the same to remain out of operation, according to the engagement or disengagement of the clutch N therewith or therefrom, the engagement being effected by pressure upon thetreadle M.

The disengagement or retraction of clutch N is efi'ected by means ofa fixed incline or track, 12, which is arranged in the path of a roller,p, journaled in the clutch N, so that as the clutch rotates the rollerp rides upon and is pressed back by the incline, carrying the clutch N with it and away from wheel P, thus rendering the disengagement automatic and causing the cross-heads to go out of action after one driving operation and to remain out until the operator again depresses treadle M. Counterweights T t return the cross-heads G D to their elevated or first position.

Other forms of clutch mechanism may obviously be adopted-such, for instance, as the well-known friction-clutch; and it is also ohvious that, instead of connecting the treadle M through intermediate levers with a rearwardlyprojecting arm on shaft L to depress the crosshead D, a forwardly-projeoting treadle, u, may be attached to the shaft for that purpose, the dperation of the cross-head through the rotation of said shaft being accomplished in the same manner in both cases, but the treadlcin one case acting indirectly through intermediate connections and in the other case acting directly upon said shaft.

In some cases adjustable connecting-rods j and l may be employed to regulate the movements and positions of cross-heads O and D, so as to suit boxes of various sizes, and the back plate attached to table B may be made to rise and fall for the same purpose, though in the drawings I have shown only the table B and back plate, H, adjustable.

I am aware that gages have before been applied to this class of machines to insure the proper placing of the parts to be nailed beneath the nail-drivers, and hence do not claim such.

I claim as my invention- 1. The combination ofthe slotted frame-work A, table B, carried thereon, and sliding crossheads 0 and D,extending through and sliding independently in the same slot, substantially as and for the purpose specified.

2. In combination with frame A, having racks F and g, pawl G, and pinion f, carried by a shaft provided with a lIZlIICl-WhBBl E, substantially as shown.

3. Thecombinationofthe reciprocation nail holder cross-head D, the shaft e, supported thereon and traveling with it, and the nailfeeders K, pivoted to the shaft and traveling with it, so that their relative distance from the nail-feeders shall remain approximately the same.

4. In a box-nailing machine substantially such as described, the combination, with crosshead D, of the lifting mechanism, consisting of treadle U, having finger u, the lever 14, and shaft L, lever Z, and connecting-rod Z.

5. In a nailing-machine, the combination of a stationary table supporting the box,-a cross head above the table, and means, substantially such as shown and described, to draw and hold the cross-head firmly down upon the boX, thus holding itin position, and a nail-driving mechanism driving the nails while the box is thus firmly held. 1

6. In a nailing-machine, the combination of a nail-holder, a nail-receiverpi'voted above the nail-holder, and provided with lever Q, having an inclined face, and a reciprocating naildriver adapted to strike and move the lever, and thereby to rock the nail-holder upon its pivot, substantially as shown and described.v

7. The combination of the wheel or tappet g on thenail-driving mechanism, cam-lever Q, and nail-holder K with the pivot e, substantially as and for the purposes described.

8. In combination with the nail-holder crosshead D, drivingshaft 0, and clutch N, adapted to connect the shaft and the driving mechanism,treadle M, arranged substantially as shown and described, whereby it is adapted first to actuate the nail-holder cross-head and then to shift the clutch.

9. In a nailing-machine, the combination of the treadle M, clutch N, spring-gearing P, naildriving mechanism 0, pulleyp on the sliding clutch, and theinclinep substantially as and for the purpose set forth.

FREDERICK WALTER BLOOD.

Witnesses:

WM. V. THOMPSON, W. MAKEPEACE EDWARDS. 

